Mobs visually sinking through solid blocks

I could not confirm this for 1.4.2pre local. I built a wooden fence about 10x10 and spawned a sheep within. Then I pushed the sheep around for 2 minutes. The sheep remained on the correct level the entire time. Wasn't this fixed in 1.4.1pre?

No this screenshot was taken in 1.4.2, I'm not entirely sure how to make it happen, but it does happen occasionally.

Was this locally or on a multi-player server?

I notice this with any moving entity in Multiplayer servers, from what I gather, sometimes the client gets confused about where the entity actually is, and because Minecraft's movement data is relative not absolute ( Unless teleporting or moving more than 4, i think it's 4; blocks in a single movement ). When this occurs, you can either try get the mob to move really fast, in the case of a player, tell them to run around and jump lots for your own sanity so they stop glitching in the ground, as for actual mobs. It's a bit more difficult to fix it, one solution is to walk away and come back, or to pick them up with a minecart.

I realise that there is no difference between multiplayer and the integrated single player now, but it does seem to occur more often in SMP, which I'm assuming is due to some sort of latency.

Solution?
Client assumes the mob is actually on top of the block using it's AABB, or the server periodically sends Teleport packets refreshing the client of the entities actual position. Maybe only within a few chunks of you do the entities have an update, this will reduce some of the bandwidth incurred by the extra packets.

This often happens to me too (using 1.4.2), though mainly with humanoid NPCs/mobs climbing up stairs. They enter the ground and walk around half-submerged, then randomly pop up again later. If there is a block or surface alongside the stairs with and empty space above it, they attempt to walk onto it, but if they are still slightly below it, they half enter the block, and so are submerged. This occurs most often with villagers.

This has happened to me sporadically since 1.3. I've seen it effect Zombies, but I've sunken into the ground myself a few times. Once on a block with lava underneath, which caused me to burn to death.

This happens to me on 1.4.2 quite a lot.
I didn't have sheep around, it saw sinking zombies and witches.

SSP

I also enclosed some witches in a 2x2 space and one of them kept running away through a corner and teleporting back.
It sounds rather related to this one.

I have reproduced this in 1.4.2... villagers and stairs seem to be a great trigger. Have not found anything unusual about the topography when monsters fall through the ceiling tho... but only those that jump (spiders, slimes) glitch through the floor above.

Yes this did happen to me in SSP and I have noticed the villagers, If you look in the background of that picture you will notice a netherbrick fence, and if you look closely there is some rails, this is my minecart track around the village, but it doesn't work because every time I load up the world their is a villager standing on the rail, and it bounces me back.

first time i noticed it it was in an early weekly update with a week after the itemframes were added or so, first my cat's started to glitch through halve slaps and later through floors, but i didnt realy knew how to report it then and wasnt in the mood to look it up thinking someone els probably wil make a report about it, guess i was wrong ><
atleast i know how to report bugs now so next time ill search it up here right away.

Interesting. I was testing portal functions...

I made single block portal on ground and set a room in netherland. I made few cows and lured em into portal. I then lured em back to overworld. They were all one block under. The effect stays even if they walk into lower land. It's like topmost block does not exist for them.

I usually have this with villagers. I noticed that this noclip issue doesn't occurs with cobblestone

I had some zombies walking up stairs,then they fell into dirt and wouldn't die

occured with vilagers sinking in cobblestone for me.

I've got three cow farms. One is on grass (that I placed) at ground level: no problem. One is on stone (naturally occurring) in a cave: no problem. One is on a 3-thick floating grass platform (that I placed), and there this bug is nonstop. (1.4.2)

Interesting! I wonder if sinking mobs means there is air somewhere in ground below them? Not sure what limits would be (would bedrock cave cause this, or only within "subchunk" (forgot name)?

In 1.4.2, I build a sheep tower farm that has 2-thick floors of grass. For me the mobs do not sink through the floor of this tower, but instead sink sort of diagonally through the 1-thick wool walls. At any given time less than 1% of the were glitched. The lowest floor of this tower was built at water level over the ocean.

I upgraded to 1.4.3pre and started building another sheep tower to try and improve my design. The lowest level is a 1-thick floor of grass that is raised 5 blocks off the ground of a superflat world. Now at any given time about a third of the sheep on this level are either black inside of the grass blocks or ghosting 5 blocks down on the generated terrain of the world. Higher levels still have a 1-thick floor, but those sheep only do the somewhat diagonal sinking, and very few of these sheep are glitched at a time.

I think the glitch is caused by sheep being able to push other sheep through the walls or floor if they are very densely packed in an area. And a sheep, on its own, seems to be able to start sinking after getting stuck in a transparent block such as glass panes or fences/fencegates

All mobs sink into ground.

This bug begins from Minecraft 1.3 update.

I added a picture of a skeleton doing the same thing, it's rare tho'. No fences around so I don't know what caused it, maybe the halfslabs to the left.

This occasionally happens to your player as well, where you kind of sink below the blocks. Have also seen it for zombies.

After some watching of mobs that do this, It seems to occur after they collide with a wall, can anyone verify? It seems like when they hit a wall for some reason they drop in to the ground on occasion to the block below them, causing glitchy appearance

Sometimes slimes sink into the ground in a superflat world

i totally comfirm happens to me all the time!! its getting anooying!!! and you forgot to mention that they can fall THROUGH it i was underground and all out of the random there was a chicken falling striaght through a block..........

I have a similar problem where mobs, usually spiders, are on my ceiling and fall in my house through opaque solid blocks.

It's been common since 1.3 and affects all mobs hostile and passive. It seems to occur more often when there are blocks at different levels and especially when there are other Blocks and entities in the area.
Fences, torches, pressure plates, repeaters etc all seem to increase the chance of occurrence but are not require for it to happen.

I have also noticed it often happens to the player around redstone devices where there are a lot repeaters, torches redstone and blocks around. The game seems to correct the problem with a player very quickly, so it exhibits as the player bobbing into the ground and out again.

The same instances just happened in Multiplayer Vanilla server.

I spawned into a solid block in a 1.4.4pre world...

David, this is different issue : [MC-2416]

NPCs/mobs (most commonly villagers) also glitch through solid blocks laterally/horizontally. This can sometimes happen even when not being pushed by other NPCs/mobs.

They treat the solid block as though it wasn't even there - maybe a space they will not preferably go, but if pushed or influenced will enter it unrestricted. If pushed enough (or even if just trying to escape from an enclosure), they will eventually walk straight through the obstruction, before teleporting back when about 10-15 blocks away or when attacked.

This happens with any solid block including cobblestone walls and fences, and the most common exit point is through a corner, although they can leave through a flat/straight section of the obstruction, whatever it may be.

happens to me mostly to villagers

confirmed in 1.4.5

This bug still persists in 1.4.5. This bug is directly linked to stairs and happens with any mob. I made a test today in a fresh single-player world:
http://i.imgur.com/G4kFJ.png <-- an entrance with stairs
http://i.imgur.com/xILJI.png <-- mob test, skeletons
http://i.imgur.com/hJHNP.png <-- mob test, wolves
http://i.imgur.com/Pd1q1.png <-- mob test, zombies
http://i.imgur.com/MK4NS.png <-- mob test, creepers
When a non-player entity climbs up a stair, the game "forgets" to update the y-coord, the entity keeps half-clipping the floor for a few seconds and then the the bug vanishes.

me and my friend somehow reproduced it. When we're next to each other mobs are more likely to glitch out than when we're 10-15 blocks appart. it happends alot, but im not 100% sure about it, but worth checking out. We were playing on 1.4.5 vanilla server.

Definitely still happenning in 1.4.5 singleplayer. Not limited to stairs, I'm seeing it on a mushroom island where there aren't any such thing.

Confirmed in 1.4.6pre

I have seen this with sheep and cows in 1.4.6.

Almost all farms on the server I play on (1.4.6) have had the animals suffocate after the newest patch. If the position isn't getting updated properly like in previous bugs it's now 'properly' recognizing that they are inside the floor.

I've had this bug/glitch too, quite a lot. After a while of playing, it gets annoying. Sometimes, like spiders, completely sink in the ground and you don't know they're there until they attack. This bug happens quite a lot in 1.4.6.

This mob sinked and looks hostile while it's not.

Endemen look hostile now sometimes when they are actually not. It is intended behavior.

Baby cows seem to do this quite a bit when falling from the top of a fence.

That makes me wonder if sometimes server and client happen to desync Y by just a little, enough that in client mobs is tiny amount lower, enough to fall into next block down?

I have seen this many times in singleplayer.

Endemen look hostile now sometimes when they are actually not. It is intended behavior." - Anon Ymus added a comment - 29/Dec/12

Yeah, it's an actual bug, but it doesn't belong to this bug report. You might want to submit it if not reported yet.

No, it's not a bug. And I think there is already a report for it.

I saw a creeper doing this yesterday. Very annoying.

This also happens to players in Multiplayer servers.

In addition to "sinking", mobs are able to pass through solid walls. We see in these two screen shots that the villager is starting to enter/pass through the wall. We also see one outside of the wall.

The villager on the outside of the box started inside. He couldn't jump over anything and passed through the cobblestone wall.

EDIT: In reference to images named: "Screenshot from 2012-12-31.jpeg" and "Screenshot from 2012-12-31 2.jpeg"

In addition to sinking (most noticable) and passing through walls (careful attention required), mobs can pass through fences.

I had a farm of sorts set up and noticed the population slowly declining. It was most noticeable with colored sheep since they could be tracked. I engaged fly mode and moved around to find a bunch of the color sheep had "migrated" to another area 50-100ish blocks away. They were with, what appeared to be, some of the missing pigs/cows. I can't confirm them though - only the colored sheep. I culled that flock and rebred some of the sheep... and waited.

In "mobs passing through fence.jpeg" we see the sheep, with enough time, have passed right through the fence to hang out on the ledge they are not willing to fall from.

@eric goulet: i can confirm this. did not notice it is the same bug, but maybe it is. like you said, mobs can travel "trough" fences, mostly noticable in farms.

Paulquappe, I would call these the same sort of bug because mobs of any type are passing through materials they shouldn't... whether it is sinking in the floor or slipping through a wall. With the screenshot of the villagers, you'll note that they appear sort of dark/black-ish when embeded in the wall. This is the same with the mobs that are sinking.

That is a different bug, Eric, reported in MC-2025.

MC-4925 is related to this issue.

This bug does not appear to be present in Minecraft Xbox 360 Edition.

some kind of Y coord desynching bug very anoying, try half slabs, fences and such things and these things will happen often.

Simmilar bug when riding a pig over halfslabs. Or other mobs moving on top of them, constlny jumping. May be related. MC-69

This is confirmed with 13w02b

The creeper got stuck.

I, too, have this problem except with chickens and villagers in areas where I have removed blocks then replaced them with the same block. The only solution I have found is to kill the NPC.

I'm surprised we haven't had a dev comment on this one by now. It's been hard enough to properly time an incoming mob especially since the separation of the client and server in SP and this bug makes it even worse for hostile mobs when it occurs. I'm tarting to suspect that they are leaving it for the release of the the new client to see what happens.

Regardless one way to duplicate it in SMP is to go to the end and go 128 blocks out into the void, then build a large triangular platform out of cobble that extends out for a further 64 blocks. Now build a diamond shaped cover two blocks above the platform in one corner. The cap should be large enough that when you place a water bucket in the center it spread to the egdes without spilling over. This is to ensure that the endermen don't teleport on top of the cap. You may also have to build a small room below the platform under the cap. Not sure if it's necessary but it is how I had done it on the MCD server.

Now if you stand under the cap and eyeball all the endermen that have spawned of the platform they should all teleport in to the base of the cap and bunch up. While you kill them off you should notice that they regularly fall into the floor of the cobble platform. Rinse and repeat until you have enough data on what is going on.

when are they going to have a fix version?

someday

This happens to players as well, and is extremely annoying in PvP

I managed to get a chicken that had sunk into a block out, by breaking the blocks and luring it out with seeds

I reported this back in october and there has been many fixes since then but still this bug exists?

Tomas Watchorn, it still happens. I have a pet cat and dog, and sometimes, when they roam around, I notice them momentarily disappearing into the ground for up to 30 seconds at a time. When this happens, their skin turns black, and they sometimes go invisible altogether. I'm using 13w03a, the latest available at the time of posting this .

I can confirm this in 13w03a also. I think it definitely has something to do with non-solid blocks because I got it when a zombie tried to walk over a comparator and then fell off into the ground.

confirmed for 13w04a

FIX IT!!!

FIX IT!!!

Shouting won't help.
Voting will.

I voted.
How many votes for it to get fixed?

Votes don't fix the bug, Dinnerbones do! (So basically whenever he has time to fix it.)

dinnerbone. stop sleeping. or let me do it for you.

@All: Stop spamming here!

Come on Dinnerbone this is quite a big bug and it needs fixing

Tell all your friends to vote here.

dinnerbone says he is on bug patrol, this has a lot of votes too 😃

I love all the new features but some old bugs never get fixed.
Dinnerbone! Please fix this bug, please.

I'm sure the staff is doing all they can to fix everything ASAP. Hounding them won't help.

I continue to experience this in 13w05b

I'm sure they are Brandon but you might notice that this ongoing bug is yet to have someone assigned to it even after all this time. Can't help but wonder if it is in the too hard basket or waiting on the release of the new client.

Yeah this is what has being happening in my world. I got Really Angery cause i put alot of work getting them where they are. Villagers, Seem like they Teleport out of the building. I seen this with everything, even friends.
I made a big room and it is about 20 blocks in the air and they are just droping out. the only thing i know will be able to avoid having issues with Villagers is to put them in minecarts. Also i did Inspect my building and their were no holes to fall through. I got so made i went Creative on a Survival world to make the floor thicker.

Is this related at all to the player spawning in blocks. This occurs both in creative and survival. I do not think that it is limited to certain biomes. Although I have seen it in both jungle biomes and extreme hills biomes.

@Ben The issue you are referring was recently fixed: MC-2416

yes, the player is a different issue
we are talking about mobs

Some items picked up are immediately placed into boot slot, mostly harvestable items e.g. watermelons, wheat, seed, carrots, potatoes. Some items are unthrowable
occasionally, such as iron swords. On placement of an item into boot slot, any previous items held there are destroyed and disappear. Only one type of item can be held
at a time, sometimes only one of each. It seems completely unpredictable which items will exhibit this issue.

@Jonas H I believe you are talking about a completely different issue.

still in 13w07a ... really annyoing bug

I can confirm in 13w07a.

It was since 1.4.2 on all of the types singleplayer multiplayer and local server

Idk if this is related but I can just push my cat into a wall and it starts to suffocate. 13w07a

Are you serious @Orion Humphrey ? If so, wow. How do you do that? Actually i never tested this myself. Perhaps I shall try that in 13w07a.

It doesn't happen 100% of the time but it happens a lot. Also when a baby cat is next to a wall and it grows up it suffocates.

The cat growing up makes sense. It becomes bigger, but partially gets stuck in a wall and suffocates. But the fact that you can push a cat into a wall and make it suffocate really doesn't make any sense.

I believe this happens when mobs are allowed to move before the world fully loads, and the mobs fall down, then the blocks load around them. Otherwise I'm not sure

Also, check out and vote for MC-8184 - it's a pretty significant redstone bug, i.e. redstone torches don't even affect TNT, Dispensers, Noteblocks etc. but only has 26 votes 😞

Can we get a confirmation of whether this happens in 13w10a and an update to the affected versions?

This is still a bug in 13w10a

I just created a world in Snapshot 13w10b (vanilla) and there were 2 wolves - one of them sunken into a dirtblock. When destroying the dirtblock the wolf was sunken into, he sunk into the next block underneath him.

Edit: After saving and reloading the world the mentioned wolf was not sunken anymore. But while loading the other wolf got forced 5 blocks to the right, like he was pulled. Then everything was fine. Maybe it has something to do with creating mobs.

Interesting. It definitely still happens, but I didn't know about that.

It still happens in 13w10b... how do you add it to the list of affected versions? can only moderators do that?

Ive experienced this as well and even more alarming the mobs sometimes find themselves suffocating in the wall. I find suffocation happens more often when a baby animal or villager transitions to an adult. i have no way to replicate this but i have experienced it through snapshot 13w09c. but like i said it seems harmless as long as they stay an adult or baby its maturing that allows them to enter a block and suffocate.

I'd assume the only sensible way to replicate it is by keeping a baby next to a wall for some time, and then waiting for it to grow up. A bit boring, though.

very boring. the way i noticed it was simply by my barn emptying to one cow when i had 3. I bred two and when i came back there were two bits of steak and one confused looking cow 😛 it almost works as an auto slaughterhouse now but id rather it didnt. ive resorted to a hopper floor to save the unfortunate drops and a 4 cow minimum

Interesting....

I can't confirm this.

Confirmed in 12w07a on MP, at least, probably later versions.

I was messing around with baby villagers and I noticed they sink through blocks even if they haven't stepped on a slab or stair, just after I have spawned them: http://www.youtube.com/watch?v=-LE0GeRkQUw&t=1m9s

Still happens on 1.5 pre-release. I reproduced this by stacking a villager and zombie with mcedit, then kill the bottom one. As soon as the top one falls to the ground it sinks into it (visually).

That is indeed a reproducible way to cause this bug. Thanks, Alvin.

They should have fixed it by now.

Bugfixing is not a question of wanting. Otherwise there would be no bugs at all in any program. If you don't have a solution for a specific problem you cannot fix the bug. It's that simple.

This is related to my post of,,, MC-11349
https://mojang.atlassian.net/browse/MC-11349
which is aparently a duplicate of this according to mods.
https://mojang.atlassian.net/browse/MC-2025

These are also related to it MC-10, MC-18, MC-119, MC-1029, MC-1524, MC-2025, MC-2037, MC-3140, MC-3753, MC-4707, MC-5187, MC-5230, MC-5369, MC-5401, MC-6115, MC-6393, MC-6396, MC-6398, MC-6465, MC-6653, MC-6707, MC-7392, MC-7462, MC-8390, MC-8707, MC-9039, MC-9393, MC-9476, MC-9483, MC-9503, MC-9525, MC-9540, MC-9568, MC-9626 , MC-9635, MC-9742, MC-9753, MC-9772, MC-9777, MC-9805, MC-9838, MC-9894, MC-9926, MC-9976, MC-9988, MC-10012 , MC-10116, MC-10157, MC-10181, MC-10229, MC-10231, MC-10268, MC-10311, MC-10370, MC-10422, MC-10552, MC-10725, MC-10797, MC-10894, MC-11009, MC-11022, MC-11052, MC-11086, MC-11203, MC-11252 ....

Those two posts are an entirely separate issue. We know what we are doing, so please stop telling us what we are supposedly doing wrong.

@Nathan Gorzelanczyk
Really? Both MC-10 and MC-18 are different issues from this one. I didn't read the others you've listed, but they're probably either different, or already marked as duplicate.

MC-18 is linked as MC-11086 which is the clone of post MC-10
So I'm not the only smart one, Read the others and take full account before you make accusations!

@Nathan Gorzelanczyk
Just stop spamming.
When two bugs looks similar, they may not actually be the same in nature.
Similarly, when two bugs looks different, they may actually be caused by the same bug.

MC-2025, MC-119, and MC-11086 are all different issues and discussion of them belongs on their own pages, not here. And you may not have noticed, but they are all open and confirmed issues, which means none of them are being neglected.

So there is not spam. If I didn't have to keep explaining myself so that you understand.

But they are different! One is of animals appearing to be pushed through fences, one is of them appearing to fall into the ground, and one is of them leaving fenced-in areas upon reload. I fail to understand your point.

They are not different. Look at the code yourself!
Its the same bug, all blocks are not correlated. Entites and Blocks are not scripted correctly as to make blocks a solid object. Therefor they sink, walk through fences, suffocate in walls, and overall don't stay in confined areas.

Meaning they are all related.
https://mojang.atlassian.net/browse/MC-11349 - MC-11349

If you don't stop spamming, I am going to have to mark your comments as mod-only.

I tried to consolidate in a higher post, but it too was considered a duplicate. I tried this argument before. I said all blocks and fences are two entirely different things.
I started a new post because people where not understanding the actual root of the bug. As I looked at the code and tested it multiple times I found the root issue.

So everyone at the moment is not on the same page.

As this is the lowest post, and most active, everything should link to it. As it all corresponds to each other. Therefor there are not 10 different post on the same subject.

@Nathan Gorzelanczyk
So does that mean you actually know how to fix all these bugs? Why don't you fix it and upload the patch? If you don't, just leave the mods and Mojang decide and stop spamming.

I lied... 😛 The main issue with the patch I have created is that it would disable mob traps.
Because mobs would be considered solid moving objects.
Therefor making mobs stack like blocks.
As this is the only solution I have been able to find.

The underlying issue is mobs are not solid objects and therefor many can occupancy the same space.
A possible solution would be to make only animals solid and keep mobs the same as they are.

The reason I have not uploaded a patch is this would entirely change game play.

Nathan, please make sure you got text right before clicking Add. I got massive spam of each edit you made.

Yes.Please limit your comments. I got nearly 400 emails because of you. SorryImeant40. I'm typeing this from my very laggy phone.

Nathan seems to be closer to the core of this issue than anyone and has provided useful input on many related topics. Considering how long this issue and others similar have been active, it appears it still is not assigned to a dev or even commented on by Mojang I'm happy to put up with a little spam. Stop watching the thread and bookmark it if it really bothers you.

Thank you Glenn and Nathan.

My problem is not # of posts, but # of edits, most of em minor edits, so I get ~20 emails by Nathan editing his posts.

For starts my apologies on all the edit. I was not aware it worked that way and will be more careful. Thank you Glenn Tottman someone that understands! I'm just trying to consolidate this into one issue. That way it can be voted up and corrected. If spamming the chat is the only way to get MOD to do there job so be it. MC-10 was the first post of this issue, of which they all relate. They put it as a duplicate of a higher post. That make no scene. If it keep getting put up to a higher number with multiple post it will never be corrected. This issue has been neglected. We are half way to 2.0. This is not a NEW issue. It has been around well before beta. So I feel if spam is the only way to get attention so be it. Fix the problem and you will not have to deal with it. I'm seeing fixes to new problems that are created because of new feature. What about the core gameplay!!! This is a major issue not a minor one. It effects everyone and it im sick of it. I see people breeding more animals than they need causing server lag because they know that they are going to lose a few. Now unless Mojang is going to start paying people to run server, I'm going to keep creating new account and spaming as you say the crap out of these forums. If that what it takes to get an issue fixed as it seems it does then so be it. Every time I post it gets put to the top. So hopefully if its seen enough as active someone will see it and fix it... So if it takes spam so be it.

Yes! This bug is freaking annoying, it should be top priority fixing it. I endorse what Glenn Tottman (11/Mar/13) said, if Nathan is sure he can explain what is happening, let him get his point across. While, in my opinion, Nathan acted a bit impolitely with the moderator (sorry, but I need to be frank), the moderator was pretty much like "shut up, we know what we're doing", he'd better let him explain all once and for all and stop this unnecessary argument or it's going to drag forever.
As for "different issues": mobs check the collision with the environment along the Y-axis (floor and ceiling) and X/Z-plane (walls), this procedure is executed every tic by the engine. Although bad collision with vertical surfaces and bad collision with horizontal are visually different, they're caused by the same bug located in a specific piece of code. Am I right? People that are used to reading the code could help us. Let's be civil.

X Y and Z collision bug Probably not same line but definitely in same region of code.

I hope this gets fixed because I'm tired of it. 😛

Confirmed its a age old bug since before 1.2 but it never has paticulary caught the eye of mojang and those images are actually not very reliable becuase a side effect of sinking into a block messes up lighting making it dead dark on the animal so they appear almost black so those images are actually unreliable or special to you although rest of post is good

Still happening in 1.5. Affects gameplay quite seriously, it's hard to fight a mob when it is phasing in and out of the ground. Please give this bug some attention.

An easier way to reproduce this bug is to make a mob (e.g. zombie) ride a Minecart and then break the Minecart. I previously mentioned using MCEdit to stack entities. Using Minecart is easier (and more "vanilla"). So apparently this seems to make MC-4925 a duplicate of this bug (not only related to).

@Alvin that is a different bug
@Deadlock989 Agreed although its fixable the worst thing is them phasing in movement where they move then teleport back to previous place..that also happens with the player for some reason?
@rolf redford it isnt actually likely that...Its most likely a Override error in loading of the chunks i would check out Chunks Dissapeering it explains that in my post on a popular 1 in the second page of dashboard (DE-GENERATIGN CHUNKS) so the mobs fall which could be the main reason
@Ezer'Arch i agree completely cuz actually i suggest on many posts the likely cause of bugs which is quite accurate BUT MODS (Im being frank here not attemppting to be rude) Act as if they know it all and are pro's who can fix any bug instantly and no-body else can fix it...ask some they probly say in 1 hour they could fix it on notepad. So yeah agreed

I was wondering if this bug is also related to recent bug I found... basically you can go to room that have ceiling. You have to be creative since it's more obvious with little longer block placement range. At right height you can place block then server removes it since it's actually too far in server side, yet it is close enough on client side. This disagreement of placement ranges may be same type of bug (if not literally same) as this. Mob Y may have disagreed and as result mob falls down one block on client side but for server its at correct place. (In fact, misalignment is in same direction too! HMM)

@Nathan Gorzelanczyk I think Mojang deserves a bit more credit. I think they know how to fix the majority of these old bugs but the fix is too computationally costly. This is especially true with the lighting issues.

CPU time spend doing bounding box and collision checks is time not spent rendering and performing other actions. Java isn't exactly snappy and the average MC player's computer isn't a gaming rig. I think they're doing their best.

@NathanGorzelanczyk Could I just point out that this is NOT a discussion forum. It is a bug tracker. We have heard all that before and I don't need it spammed in my inbox. Thanks.

To give it a bit more emphasis: This is no forum, this is a bug tracker

Successfully reproduced this bug by making a water current and spawning some mobs inside it.

I saw it in Minecraft 1.3.2,my cat and the villager keep sinking down(for more details look at pic 4 and my cat didn't take suffocation damage!)

This also happens to players in multiplayer.

This is the most popular issue & it has been open almost 6 months now. Why is it still unassigned?

Most probably because they still don't know what is causing it. It sometimes happens when mobs walk over long bridges. As they walk along, they sink, become black, then reappear on the surface.

It never happened in singleplayer before The Big Merge. What is the difference between single- and multiplayer concerning the position calculation of entities?

Does it have anything to do with rounding of numbers?

This is confirmed in 1.5.1 and 13w16a as seen in the screenshot.

Apparently they've fixed this in 13w16a, but I don't think they did it right, unless they reuploaded it after mike added the screenshot

Nope, Tomas, It's not fixed, it's only became worse than in 1.5.1. In 1.5.1 My sheeps been inside walls... Now they showing off in 13w16a... =D One even escaped... Through door maybe (but it's another bug).

Its just that on the wiki it said a reupload of the snapshot was released that fixes the 10 most popular bugs and issue 119 mobs sinking through solid blocks was on that list

Not fixed at all, redownloaded launcher and even reinstalled snapshot. Nothing helped, mobs still very easy go through walls... It became very glitchy, my sheeps glitching with each other and going through door like there's no door, 3 seconds later it teleports back... So, NOT FIXED! =D

Im not too sure i dont think they released a new snapshot they just reuploaded it or something its really confusing

Maybe somebody wrote that on the wiki to troll?

I don't see changes... Hmm, let's read wiki...

There's on wiki only this:

—

New launcher has been pushed out, if you were having trouble starting the game then please give it a try now! (You will need to redownload) „

Fixed starting game trouble

—

Where you seen bugfixes? =D

Are we talking about floor? >_> I'm talking about walls, and mobs collisions... I hope it's same bug. =D

Added some video about my sheeps and their problems. XD

We are talking about the floor, the walls is a separate bug, however that was on the list of fixed things too. However if you open up the new launcher it should say under 13w16a, update available. I clicked the arrow selected 13w16a, even though i thought i was already in there, then I clicked play and it redownloaded it and I'm pretty sure the bugs are fixed.

Tomas, I doubt the issues have been fixed, because they would have been logged here if they were. That is what JIRA is for: keeping the players informed of progress on bugs and tracking work.

Pfft, you wish they have been fixed. Still happens.

Yeah, the wiki said it had been fixed, however the text saying it was fixed has now been removed, I guess it was a mistake.

That was either vandalism or false belief. Or age2empires2020.

I'm afraid the wiki page never said anything about this bug being fixed. IMO, the wiki user age2empires2020 just vented his/her anger that lots of new features have been added before making the already existing features work correctly. Look, for example, at this revision of the "Version history/Development" versions wiki page, which I think started the debate. Under "13w16a" it says "Bugs" and "Top 10 most popular bugs", but nothing about them being fixed. As opposed to "Bug fixes" in all other entries.

I saw that. An admin undid his edit, then he undid that, another admin undid that, he/she came an undid THAT, and then the admin protected the page so that only admins could edit it. Damn you age2empires2020!!!!!!

An easy way to replicate this issue is to spawn mobs on lily pads, clientside they will immediately sink through. And as opposed to being in real water zombies burn, endermen won't take damage and creepers blow up the lily pads. Here is a video that demonstrates it: http://www.youtube.com/watch?v=T0PQpQ-CVrM

This may provide another clue:

After a long search, I believe my problem here belongs in this discussion as well as the suffocation issues when mobs "encounter" solid blocks and get damage/death.

In a village, when a villager is stranded atop a high place, I have often "gravel-ed up" and coaxed it to ride down the "gravel-ator" safely to the ground.

Sometimes they would apparently take it down a few levels, then jump.

All other times, at various levels, the villagers would fall through the remaining blocks & begin to suffocate. I'd have to bang out the remaining gravel blocks to save it, but it would take damage the whole time – whether this damage was from continued suffocation, my swatting away the gravel as it fell, or both – I do not know.

This is a consistent problem. I have several other suffocation-type problems that are well-described by other people here. I also get the significant lag that is prevalent throughout the game – but I work off of a laptop. I always update when MC prompts me to, so I assume I'm on the latest version.

Everything I do is strictly VANILLA.

I am in PEACEFUL MODE.
(A good thing, too! The Golems are pretty pi$$ed after my rescue attempts!)

I hope this sheds a little more light on the parameters of this large, very annoying problem.

Happens in 13w17a

Still in 13w19a

it also happens in multiplayer, when you are on a big server players glitch out and they look like they are flying or sank into the block

Not only mobs, but also it is with players many times

I really think that this bug is just a symptom of a bigger problem. Ever since the merge of single player and multiplayer there have been a few seriously annoying bugs that just never seem to get fixed.

• The mobs glitching as we have here.

• Players becoming separated from their boats. Which results in ghost boats and player images in multiplayer and boats that suddenly break for no reason but if you log out and in again you find yourself in a different position to where you thought you were and you actually just hit a squid or the tip of an island.

• The almost impossible task to hit back ghast balls which never used to be so difficult to time.

• Increased difficulty timing hits on attacking mobs,even worse for fast moving ones like spiders.

• Spiders yoyoing up and down when they are up at the ceiling.

These are just a few and I think the problem comes down to some serious sync issues between player and client that came about after the merge. It seems that the client and server are regularly at odds to the position of players. mobs, and other moving entities. It's gotten to the point where I adjust my gameplay to compensate for what I'm guessing the server is thinking.

I would also take a guess that the reason there seems to be no acknowledgement at all of a bug like this one (that is at the top of the list) maybe due to the fact that they are hoping to fix this problem with the new client when it finally is done.

I also can't help but wonder if on a high speed work lan and using top of the line hardware whether it's possible that these problems don't exhibit themselves as much, so it not apparent how discouraging they are for many players.

Right or wrong I dunno but I do know that since them merge some things have never been the same.

+1 to Glenn Tottman's comment.

It is rather demoralizing that the developers never comment on, or give any acknowledgement of top-voted issues like this that have gone unfixed for so long.

Really annoying

Annoying!

Come on! At least comment!

Still in 13w23a...

This also happens in 1.5.2

Still in 13w23b

I've seen this a few times. Usually the lighting on the mob is too dark when they're in the block (seen with a baby chicken, a cow, and a wolf).
This can even happen to players. It's happened a few times to someone on my server. He seems to be the only one experiencing it.

A similar thing happened with a boat placed on the ground (this one time, I put a boat on the ground and it sank through a block with me in it once I got in). Does that deserve it's own issue, or can it go here because boats and mobs are both entities?

I hope Mojang reads Glenn Tottman's comment because it's the same that lots of players are experiencing since the SP/MP merge...

Always happens with my chickens... They escape their pens by glitching through the pen walls.

Affects 1.6.1

This occurs quite regularly on all my maps and versions.

I believe it is fixed in 1.6.2 😃

Maybe co-fixed with MC-2025

I'm still able to reproduce this in 1.6.2, but it seems to be better now.

Just spawned a horde of Zombies and let them chase some villagers in 1.6.2 ... after some time their movement went choppy and they started sinking through blocks. Could reproduce this three times in different worlds, so I think this bug is still valid.

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Hey, Ezekiel.

Thanks for checking in on these bugs to keep the affected versions list up to date, but users zombie hunter and Michael Wobst have already commented that 1.6.2 is affected by this bug.

I just double-checked, too. I spawned 8 chickens in 1.6.2 Singleplayer Creative and led them around with seeds. It only took about 15 seconds before a couple of them started sinking through blocks.

This bug still exists in 1.6.2.

Ezekial,

Just last night, I was on a 1.6.2 server I host and a coworker and I were talking about how MC-2025 was not actually fixed (bug has thankfully been reopened) when him AND his horse that he was riding sunk into the ground.

I've seen it in Single Player as well. We use 64-bit Linux environments with Java 7.

So, it was not co-fixed with MC-2025 as [Mod] Kumasasa suggested as a possibility.

@Ezekiel:
Read the 2 comments above yours, it was already mentioned that this is still a problem in 1.6.2. Would any Mod be so nice and update the "Affects versions"?

Apologies, I did a bulk edit and obviously didn't see your comments.

Very bad issue in 1.6.2, horse sinking into ground is no fun. Usually it's needed to dig a huge hole and excavate the animal.

I find that when I try to get them out of a block they're just stuck in the block below that.

@phycist1616 That's true, but when they aren't entirely buried, they sometimes "teleport" to some other location and become unstuck. I've had this happening with a horse: the horse went under blocks and disappeared, and when I dug him out, he was 10 meters to side, above ground. Looks like some problem with syncing.

I know how to reproduce this. This is a visual example:

Mob
Block<-----When you break this block and the quickly log out the mob will be stuck at the bottom block. Ofc after you have logged back in.
Empty
Block

Also I made a video of it.

http://youtu.be/wc_yVdGAjVI

Just to be clear, the bug can still occur without ever logging out.

this is still very much happening. I have lots of video of it. I have an iron golem farm with villagers constantly falling out of their enclosures, I have cows, chickens, cats... just about any mob getting stuck in blocks [my entire chicken farm is dead]... and oddly on my skeleton XP farm, at the "drop", the skeleton will teleport up and down the shaft until finally committing to the drop and then I can kill them. I don't know if it is related, but watching the villagers fall out of the golem farm, it is similar in nature. they fall out, then up, then down, then up, then down and will eventually reside on the ground. I hope it is fixed at some point.

I recently made a bugfix mod for glitching mobs and even though I couldn't reliably reproduce this issue in 1.6.2, I think there's a good chance this should be covered as well: https://github.com/taurose/Unglitch (4).

In the tracker code there's a flag that determines whether an entity has moved far enough to send a position update. Several lines later, if the flag is true, the tracker stores the entity's location that is supposedly sent to the players for later updates. However, it seems that over time Mojang added several conditions to circumvent that flag and send or not send position updates regardless, which causes the "last sent" locations to be off. And once that happened, the clients receive false position updates and the entity appears offset.
Luckily, this can be fixed quite easily with a few lines once you know the problem.

If that's the source of the issue, this would be related to MC-342.

Confirmed for 13w37b - attached screenshot

Happens in 1.6.2, mobs sink half a block after falling in a floor trap but if they are heading toward you they just sink half a block and then magically pop back up and bypass it.

Still happening in 13w39b.

I confirm this is happening in 13w39 as well. One very easy way to re-create it is to have a mob ride in a minecart and than break the cart under him. For about a minute he will walk around half in the ground. After a while, it does correct itself and he starts walking on the ground as normal.

Is this still a concern in the latest Minecraft version 13w42b? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Having watched mobs a lot, this bug is generated when the mob uses stairs, or jumps up one block. It seems to be related to how high the mob is jumping. Hope this helps. I can recreate this bug with any entity in the game, so it is systemic, not conditional.

Yes, this is confirmed for 13w42b, just got killed by a baby pigman, and all I could see was his sword and the top of his head sticking out of the ground.

I confirm this bug is happening in 13w42b as well. I see it most often with slimes but any creature can do it. Its basically the same behavior I saw in older versions. The easiest way to re-create for me is, have the mob in a mine cart. Destroy the mine cart under him.

It seems to happen also when mobs fall through trap doors. If the trapdoor is next to a door they can glitch through it as well.

Can confirm for 1.7.2

This glitch still exists, even in the most recent version, as of what I know. I'm not a Mojang developer, but I can tell it's a hitbox glitch. The mobs can't be hit until the block they're in is broken.

This isn't really a bug or glitch, it's because of lag

Not true. I can reproduce this with frame rates 60+ I tested this at 60,80,and 110

It's probably a bug/glitch caused by the server lag
so it has absolutely nothing to do with client lag/low fps on clients
and if you are talking about single player: after a certain version mc smp also uses an internal server to support lan games which always runs despite you are not playing on LAN
all in all it should be fixable

No, there's no absolute way it can be server lag. I'm sure that this glitch has been around since before the LAN button was introduced, even on singleplayer!

@RandomDSplayer I could be server lag but it could also be a bug that has to do with the Singleplayer & Multiplayer merge back in 1.3 and then appeared in 1.4 because Mojang changed some of the code around. Well that's just my theory

well it has something to do with the server-client connection
because the client would never put somebody or something in the floor
but the server keeps telling it to the client which may be the reason for the boobing of the animals
->they move up and down

would be interesting to see a mod which tracks the animals position used by client and the ones used by the server to determine whether the client gets wrong position by the server or whether the client messes the right position up
or if there are mistakes in both

the problem is that this doesn't always happen

@Djfe I did that already and posted my findings above. By now, I'm fairly certain that what I described is the main cause. It's primarily the server that sends wrong positions to the client.

Still happening in release 1.7.3 ( 2013/12/07) single player (i haven't tried on server) I'm noticing it happening with ALL mobs/characters at different times and in different places. ie: not all mobs in the same place will be effected only some. happens on slabs, full terrain blocks, manufactured blocks etc. sometimes even going as far as to actually leave their true current block and walking away through/under blocks. also falling through hoppers (eg: in a chicken farm.. they sometimes appear at base level of hopper instead of on top. same with slabs, and not actually being treated as in or on the block)

sorry i don't know how or if i can add in the version its happening with. if i could i'd add it to 1.7.3 and its snapshot releasts

I've had this happen to me regularly in single player (1.7.2). I thought this was one of those bugs that everyone knew about and was just waiting for a fix (like the well known "every villager in a town crowds into 1 house" bug). God knows it happens often enough that you'd have to only be playing rarely to not see it. I find it's about once a day every day, and that's just the ones I notice (I assume it's happening 4 times as often but I fail to spot it the other 3 times).

Affects 1.7.4.

I confirm that it's still present in 1.7.4.

An easy way to reproduce that is to do "/summon Zombie ~ ~3 ~ {Motion:[1.0,0.5,0.0]}"

I've also been able to reproduce this many times by pushing a villager into a minecart, pushing the minecart off the rail, and breaking the minecart.

Confirmed in latest version!

Still in 05a,

Still in latest snapshot - 14w05b.

Still in 14w06b.

it seems it happens often when an entity walks on stairs or slabs. it's common in villages and around houses with such blocks.

I have the same issue, but it does not happen to me with slabs and stairs, but instead when the mob falls. https://bugs.mojang.com/browse/MC-47891

I haven't noticed it yet in 14w07a, anyone else?

Steven, I will leave a test build running since you mention this.

Is loading/unloading considered necessary? I'm fairly sure I can just stay near the chunk to get this to happen.

Still occurs in 07a

Based on the evidence, it's unlikely that anything short of a complete overhaul of the clientside entity rendering code will fix this bug.

I see it a lot with slimes for some reason... Other mobs too but I noticed slimes and magma cubes do it a lot... huh

Probably because they jump?

Still in 08a

Confirmed for 1.7.5 and 14w10c

BUG: Mobs jumping on >1 meter-tall blocks sink when they hit their head on ceiling or reload the world as they fall.

List of Mobs:
Skeleton: 14% Usually after they start burning or jumping on things
Zombie: 10%
Chicken: 10%
Spider: 8%
Villager: 7%
Wolves: 7%
Other Mobs: 5% (avg.)

Confirmed for 14w11b

I have has this happen on a map I am working on, I summon a Baby Zombie and when it runs around for a bit it falls right trough the floor and dies of fall damage. The Baby zombie only been one block tall, on a one block platform, when it falls trough one block, it falls to the ground

I think a viable solution is to [Partially] use hit boxes to detect ground and objects around. I might actually open up with this topic, and it might have to do with the skin bug occurring that i have reported. Then again, hit boxes are not always reliable. but try it out in a test version, will you? It might just work.

Confirmed 1.7.8

Still present in 1.7.9.

Still present in 14w17a.

Definitely in 14w18a. Had a bunch of baby zombies chasing me inside grass blocks.

14w19a

Yep, my 14w18a server and 14w19a test world exhibit this behaviour.

lol, 649 votes...

@Christopher I think it's funny, that this is bug no. 119 -> one of the oldest bugs in mc.
(we are far in the thousands of bug reports already)
At least one of the oldest that isn't fixed, yet.

@Djfe,

I guess we'll just have to wait and see. I despair for the bugs from January this year, but Mods have made some comments on other tickets that suggest that there is significant re-engineering going on and that bugs may go un-addressed while the underlying systems are overhauled. I can understand that, I just wish there was better communication of that here and in the release notes for the snapshots. It would prevent people from getting (quite legitimately) upset at the apparent (due to the lack of in-band communications) inaction.

Confirmed for 14w21b.

@junior can you repeat that in english please

This has also happened to me while playing with my friends on servers, where an actual player would sink into the ground.

Yeah, in multiplayer this could happen with players as well, except when it happens the player doesn't bob up and down when they move, and you can only hit them where they are in the ground, which makes this very annoying when you're fighting another player. They can be at different elevations as well, sometimes higher sometimes lower.

I'm not sure if this is related to the multiplayer bug where someone is in the floor/up in the air.

Actually I have only seen it happening on the hypixel server (quakecraft) where the client showed people flying several blocks in the air or where in the ground.
You would need to aim for the ground to hit them although it looked like they are flying. (might be - but I hope not - mod related, but I'm only using optifine)

To reproduce (in 1.7.9):

1.) get a villager in to a minecart
2.) Push the minecart with the villager in to a hole in the wall that is 2 high, 2 deep and 1 wide.
3.) Fill in the block in front of their head making it so that they cant escape from a 1x1 area. (This should be done with a glass block if you want to see the result in a good way)
4.) Go down one block and destroy the minecart they are sitting in without destroying the block they are standing on.

Result --> Villager sinks through the block they are standing on.

To make them pop back up:
1.) Leave the area so that the chunks get unloaded.
2.) Come back.

Don't forget about this:
How to do this?
1. Open a world
2. Create a 2x2x2 water tank with any block next to it. only 1 wide otherwise you cant see it happening
3. Fill the tank with many, many, many squids

Tested in the latest snapshot - Confirmed (14w26c)

@karst van galen last
that is just a visual glitch because of the huge amount of entities that push each other

this issue is more about mobs/etc. walking in the ground for a longer amount of time, I think

pls correct me if I'm wrong

at least I think that both issues have different causes

@Djfe true, but still the mobs 'sink' through solid blocks. What should not do that, even with so many entities. I think it is quite the same as this bug. But you might can call it else

Mojang really needs to fix this. The game is unplayable since i think this is connected to animals generating somewhere else when loading worlds.

@Kast_van_Galen_Last and @Djfe Thats not true. Mobs don't just visually sink or drift out. You can actually hit them when they're drifting horizontally. Vertically sinking IS a visual thing, but not horizontally. Plus this had to do with the stuff they added in 1.4.2 obviously. This means that the fix may be to rewrite everything added in 1.4.2 until it IS fixed. This would also fix MC-2025.

This didn't start in 1.4.2, the tracker just didn't exist before.

It is also with players in servers

It is also with players in servers

Yes 😛

I've noticed that it seems to happen more frequently when partial blocks are around – half-slabs, stairs, fences and so forth. A single half slab placed in an enclosure with animals or villagers will cause problems frequently, up to and including suffocation if the animals stay "underground" too long. The suffocating is more prevalent with baby animals and villagers.

I've more noticed small animals such as chickens and rabbits doing this. What's odd is that not only do they sink in there, but the collision detection for all other parts works properly - after I saw a rabbit sink into grass blocks, it suffocated and died (smoke particles obvious) and I got EXP for it. It was really odd.

Seen this for as long as I've been on Minecraft, def. a big issue that seems easy to solve, but I don't really mind. It's weird, but what can you expect from a game constantly in progress?

I stopped playing Minecraft for a while shortly after full release (1.0). It was not a bug that existed around then. It cropped up between then and now – I'm not saying it's easy to solve, but it's definitely a bit of a problem.

What is also really bad about this bug is that it is lingering on through all of the code cleanup and optimization that has been done for 1.8. It must be a difficult problem. So if 1.8 doesn't address it you may as well consider this simply how Minecraft is going to be for a long while.

Possibly fixed in 14w25b.
No longer sink when got off from the Maincart.

Still happening in latest snapshot 14w33c
Iron golems routinely sink through the ground into the hopper minecart tracks 1 block below. Happens several times in an hour of play.

Yeah the mobs sometimes do that just kill the mob that is glitching though the block.

Did the fix to MC-67127 change anything regarding this bug? (Just thought since they are both entities behaving strange when not around)

Just confirmed it still happens in 1434b. Had all 4 of my iron golems above ground in my slime farm, ran around for about a minute and one was sunk through to the rails 1 block below.

Do bugs from Popular Issues are waiting for more votes to be fixed? This thing has 713 votes as of now and it doesn't even have assignee.

This issue is well known, but apparently cannot be fixed so easily.

This will probably be fixed in 1.9 or a 1.8.X update as this requires them see what causes the issue and how to fix it. Just wondering was this a problem since availability (first person purchased/downloaded) or sometime in alpha or beta?

Well.. So its only the "easily" fixed bugs that gets fixed now? Should we stop reporting on the "hard to fix" ones?
The real nasty bugs should be the things that has priority. New content (and thus creating new bugs) should be second hand to the real bugs in the game. I mean bugs like this one, mobs going through walls when unloading/loading chunks, the path finding totally lagging the server, the 1000 mobs a second mob spawning and so on are real problems that should have highest priority. Talking about a 1.8 release when these bugs are still around is meaningless.

will this eventually be fixed by rewriting a certain code?

PS is this related to mc-2025?

Pierre: No, sir. We should continue to report all bugs regardless of their severity. But when you have a list of thousands of problems in an arena like this, you have to start somewhere. It makes the most sense to fix FIRST the things that impact the most people in the most way and, in some cases, to fix easier ones first if it affects more people. There are more problems than just this.

I think this has to do with mobs jumping.

I recently built a wolf-powered skeleton farm on my server. I noticed that the wolf that kills the skeletons sometimes sinks into the hoppers below when it jumps up to attempt to reach the skeletons that are about to fall onto it (it almost always jumps, but rarely sinks).

When I was testing and developing the skeleton farm in Creative singleplayer, the wolf sometimes sunk when it jumped, too.

Iron golems don't jump and they are also sinking. I have personally sunk through the floor multiple times while playing on an smp server as well while just running.

I don't think player sinking is related to mobs sinking at all.
player sinking is probably caused by client/server-lag

if my internet connection is too slow I can also sink through the floor, because the client hasn't fully loaded all chunks.
the Server still sinks that I'm on top though.

As of today, my iron golems are still sinking through the ground (there's a railroad beneath the ground) in my slime farm, usually within the hour of placing them. Very annoying; my farm is currently unusable.

This should be renamed to "Mobs visually sinking through solid blocks" to distinguish it from MC-72868 (which describes mobs actually falling through the ground).

Yeah, sometimes it even happens with players

I haven't experienced that before, probably just because I have good wifi. It's probably a connection problem. Also, it may not just be on the PC. I was playing PE earlier and some animals suffocated through the wall. (I did not use fences.) It was annoying.

Villagers pushed into blocks other villagers

Villagers have passed through the blocks

Significant problems since the most recent update this week... Mobs are sinking into the ground or blocks, and popping up randomly, or floating above surfaces; also they are travelling far too quickly, moving backwards, jumping very high, some can't be killed... Can't play anymore due to nearly instant death!

@@unknown: There was no update this week. The last update was released on April 17, 2015

Well we just updated earlier this week... These problems affect all our existing worlds, including newly created worlds. Are there any suggestions or fixes?

If this is still a problem, please update the affected version list. (I don't met the problem since a long time)

Confirm for 1.8.7

this can also happen to players on your screen. Has somebody tried of f3+B at these or has their hitboxes stayed at normal spot?

You PC may be to laggy, I had that happen with my old laptop.

Cannot confirm as of 15w44b. Probably fixed.

No reports of this happening since 1.8.7, assuming fixed somewhere between 1.8.7 and 15w44b.

I have seen this bug (and the fence escape on chunk unload bug) in 1.8, but never in any of the 1.9 snapshots, which I have played on extensively.

stop sending me this now.

@unknown Ö.ö?
Ehrm, just unsubscribe from this bugpost by removing "Stop watching this issue" to the top right.. ;-;?

@@unknown:

(hope I'm reporting this in the correct location. I searched for duplicates and found this post.)

I have had this issue countless times now on 1.10.2.

So far it's only happened to me with villagers and only with farmer villagers on rough(unraked) dirt blocks that had farmed. I don't know if it happens to any others as the others all stand on stone blocks and are fenced away from dirt.

It's easily happened ~8 times now and looks just like the many other screenshots. I will break the block, they will climb out, and I'll replace it with dirt again, and again they get stuck. I now replace those particular blocks with stone, but they just get stuck in other dirt blocks.

Not sure if it makes a difference, but all my villages are underground and the are they farm was stone, but I replaced it with dirt for farmers to farm. I have no villages outside so I don't know if it happens there.

This now happens so frequently to where if I leave and return, ~70% chance I will have 1 of 2 farm villagers sunk in the dirt, or both of them sunk in the dirt.

Win 10
Java 1.8.0_101-b13

• I will also add here, as I found a similer issue described elsewhere, but it was flagged duplicate and referenced to here,

• Issue: I get stuck in a block.

More details: Sometimes when jumping from one level to another, (haven't found a pattern yet) I will be stuck in an (seems invisible) block and struggle to move.

Haven't found a way to repeat the issue, but it's occurred > 4x now. All 1.10.2. I happens so often now, that I'm scared to walk around when it's getting dark and I'm near an unlit area. If I get stuck, I can't defend myself well.

Once it occurred while digging sand with a Efficiency V shovel. Slowly I walked off a ledge hoping gravity would allow me to fall and unstick myself. It worked.

Another time with Efficiency V shovel on sand, an invisible block was created. I couldn't walk though it. I placed a land block there (don't remember if it was sand, dirt, or rock), dug it away, and it cleared. I was now able to walk through this point.

Again, although it's not exactly related, I found this issue reported elsewhere, but those were labeled duplicate and referred to this post, so I'm posting it in the comments. Don't know how to reopen the issue.

@My Name

Make a copy of your world and update it to the latest snapshot (16w33a) to see if it happens there. Because a bug is only relevant if it hapens on the very latest version, and it might be the case that it happens on 1.10.2, but doesn't in 16w33a.

If it keeps happening to you in the snapshot, please post some screenshots of it and when you see the bug happen. Also, save the world and upload it somewhere so that the devs can download it and maybe figure out what causes it. This is assuming that the bug persists after a exiting and reentering the game, that is.

Version 1.10.2
Happens extremely often. More specifically, on average, for only having 2 farmers with access to this field, it occurs ~1/hr. If I play for a few hours, I frequently have both farmers fallen into a block and nobody farming. (this comment was supposed to be attached to the screenshot. I didn't expect it to append to the comments section.)

@Alexander, I just saw your post now. I don't know how to do what you asked, but I will try and figure it out to help.

UPDATE: No, I can't find 16w33a.
I found the following, (see link below), but not the actual build.
https://bugs.mojang.com/browse/MC/fixforversion/15659

UPDATE: Figured it out and trying 16w33a. Thank you.

UPDATE: After a good amount of time where it seems I should have seen farmers stuck in a block, I haven't seen anything. However, I still get stuck in a block sometimes. Reported that here with an animated GIF. May be the same root cause to this issue.
MC-104259

Here's a screenshot showing the problem still occurs with 16w33a.

All technical details are in the screenshot.
Win 10 Pro 64-bit
Java 1.8.0_101-b13

Asking if this problem can be reopened.

More accurately, this seems to occur once every 5-10 hrs.
It may just be coincidence, but this seemed to occur more frequently with 1.10.2.

If I upload my world for the developers to test the problem, I would need more information on what specifically(specific file or whole directory zipped) I would upload and suggestions on where to put it (Dropbox? other?). Thank you.

@unknown You can attach files incl. worldsavefiles like you can also attach screenshots here:
Just click the "Attach Files" button up there and add it (of course as ZIP).
The maximum file size is 10MB.

I'm not sure, but I'd assume that the whole worldsave probably would be best, to see if the problem lies within the world somewhere but has not really something to do with this bug here, or it does after all.
Maybe also additional information in which MC version that world was created?

Here's 100% proof in my last GIF upload.
This also proves it's directly related to -> https://bugs.mojang.com/browse/MC-104259

@Meri Diana, my previous world was created in 1.10.2.

In my latest GIF above, you will see I recreated the issue. You can do it to.

1. Creative mode:
2. Build glass wall around villager on vegetables.
3. Create hole for you slip in.
4. Harvest what ever plant is under mob.

• Continue destroying/harvesting plant/weeds until no new seeds are laid by villager.
  5. Villager should now be standing on manicured dirt.
  6. Wait for manicured dirt to become regular dirt.
  7. When manicured dirt -> regular dirt, mob falls into block.

You can see in the GIF, that it happened with both villagers I trapped and tested.

Again, this looks like the same problem as https://bugs.mojang.com/browse/MC-104259 , but in MC-104259, YOU get stuck in trying to fall into the block.

Again did a 2nd control test in creative mode to prove this needs to be reopened. This is even more crystal clear of what I did.

Mob-sink-in-block2.gif

4 villagers in glass.
All 4 fall in the ground block when the ground changes state.

You will see at the end, I was suprised they will walk out of it too.

Windows 10 Pro 64bit
Java 1.8.0_101-b13

I'm curious if anybody who does this DOES NOT get the results.
I predict everybody on 16w33a can repeat this as I did.

That is a different issue. The farmland block changes from 15/16 of a block to dirt which is a full block. The entity is then stuck in the block and falls through.

Argh... 5x I created time consuming detailed posts with supporting data here.

Created NEW issue --> https://bugs.mojang.com/browse/MC-106466

Argh..

This will be my last bug report. Minecraft is paid for software with paid people on staff to make it better. I'm not getting paid for helping to make your software better to keep the staff, developers employed, collect Microsoft stock shares, and make more money.

Any other bug reports from me, then refund my purchase of Minecraft for helping you or pay me as an independent contractor.

Those that are volunteers here, I feel sorry for you. Working for free to help build feed and cloth people in poor places/countries is one thing. Working for free to help a profitable business make more money that increases it's stock price and makes it's investors more money is another.

@unknown
<metatalk>(I know I shouldn't)
Aside from the fact that we paid only ONCE for a game that gives us SO much different possibilities, an open game that can go on forever and ever, or minigames etc., and Mojang not being obliged to spend money to let their staff give us new content all the time, just a bug-free game at some point, which they try to do with the MCPE-/WIN10-version, coding it from the ground up to its final product, which means in theory they could even phase out the buggy JAVA MCPC version here..

And aside from the fact that Mojang/Minecraft did not belong to Microsoft before (for the longest part of its existence so far), and this bug report system is very much older than Microsoft owning Mojang... We, who still are contributing to make this game better, are possibly all in love with the game itself and some of its community, despite what we may or may not think about Microsoft owning Mojang/Minecraft.

Keep your misplaced "pity" for somebody and somewhere else.
What we decide to do voluntarily is up to us, and you're always free to not contribute.

Some of us also do good deeds like helping to feed and cloth people by the way, one does not exclude the other.

Thank you for trying to help though, have fun gaming in the future }=)
</metatalk>